Joined Jul 2005
181 Posts | 0+
Högsby, Sweden
My 501 was rebuilt five hours ago by yours truly. Everything in order and things running smooth until I noticed dense blue smoke firing it up yesterday. Upon lifting the head I notice a lot of oil in the combustion chamber and when I took the left cover off I could see the main seal has popped out!!!!!!!!!! So there has been a huge pool of oil in the crankcase since the reed could not operate, hence the smoke.
I have no clue what could have caused this. The seal was installed very carefully and the seal on the other side is fine.
Could someone tell me if there is some other way to install a seal other than lubricating it and gently tap it in place with a mallet? (Evenly ofcourse, I have done this before.) Should it be pressed instead?
Have I had crankcase combustion? I had a bad stator last ride and flooded the engine trying to start in sub-freezing temperature. I view this as unlikely though. I think I would have noticed. Or not?
Expert advice needed!
I have no clue what could have caused this. The seal was installed very carefully and the seal on the other side is fine.
Could someone tell me if there is some other way to install a seal other than lubricating it and gently tap it in place with a mallet? (Evenly ofcourse, I have done this before.) Should it be pressed instead?
Have I had crankcase combustion? I had a bad stator last ride and flooded the engine trying to start in sub-freezing temperature. I view this as unlikely though. I think I would have noticed. Or not?
Expert advice needed!
